Describe the basic ideas of VESPR theory and predict the shape of BCl3, NH3 and SF6 molecules. What are the limitations of this theory?
Chemistry
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Chemistry · all yearsQ. 1 · Describe the basic ideas of…Q. 3 · Compare the elements of VA…Q. 4 · What are the crystal defects…Q. 5 · Derive the Schrodinger's wave equation…Q. 7 · How is Acetylene prepared on…With this paperOfficial PDF2 pp2021 →Section I
Compare the elements of VA Group with respect to electronic configuration, oxidation states, electronegativity and formation of Halides and Hydrides. Also discuss the abnormal behaviour of Nitrogen in the same group.
Section II
What are the crystal defects and how are they classified? What are the consequences of metal excess and metal deficient defects in a crystal?
Derive the Schrodinger's wave equation and solve it for particle in one dimensional box. What is the interpretation of wave function ψ?
Section III
How is Acetylene prepared on Industrial scale? Discuss catalytic hydrogenation, hydroboration, halogenation and hydrohalogenation of Acetylene giving appropriate examples.
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The 2019 CCE Sindh Chemistry paper set by the Sindh Public Service Commission. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet. Open the official paper beside the questions to check any of them.
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